Page 46 · SumoBot – Mini Sumo Robotics
' SumoBot_5.1_Basic_Competition_Program.BS2
' {$STAMP BS2}
' {$PBASIC 2.5}
' -----[ I/O Definitions ]-------------------------------------------------
LMotor PIN 13 ' left servo motor
RMotor PIN 12 ' right servo motor
LLinePwr PIN 10 ' left line sensor power
LLineIn PIN 9 ' left line sensor input
RLinePwr PIN 7 ' right line sensor power
RLineIn PIN 8 ' right line sensor input
LfIrOut PIN 4 ' left IR LED output
LfIrIn PIN 11 ' left IR sensor input
RtIrOut PIN 15 ' right IR LED output
RtIrIn PIN 14 ' right IR sensor input
Speaker PIN 1 ' piezo speaker
StartLED PIN 0 ' display start delay
' -----[ Constants ]-------------------------------------------------------
LFwdFast CON 1000 ' left motor fwd; fast
LFwdSlow CON 800 ' left motor fwd; slow
LStop CON 750 ' left motor stop
LRevSlow CON 700 ' left motor rev; slow
LRevFast CON 500 ' left motor rev; fast
RFwdFast CON 500 ' right motor fwd; fast
RFwdSlow CON 700 ' right motor fwd; slow
RStop CON 750 ' right motor stop
RRevSlow CON 800 ' right motor rev; slow
RRevFast CON 1000 ' right motor rev; fast
' -----[ Variables ]-------------------------------------------------------
lLine VAR Word ' left sensor raw reading
rLine VAR Word ' right sensor raw reading
blackThresh VAR Word ' QTI black threshold
lineBits VAR Nib ' decoded sensors value
lbLeft VAR lineBits.BIT1
lbRight VAR lineBits.BIT0
irBits VAR Nib ' IR readings (l & r)
irLeft VAR irBits.BIT1
irRight VAR irBits.BIT0
lastIr VAR Nib ' info from last reading
pulses VAR Byte ' counter for motor control
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